Method of application of closure liner in hot fill packages

Abstract

A method of applying a liner to a container mouth in a hot-fill operation, said method comprising the steps of: placing the liner over a mouth sealing surface of the container; heating the liner by induction or conduction; and cooling the liner immediately thereafter while biasing the liner against the mouth sealing surface for a sufficient length of time to permit curing and sealing of the liner to the mouth sealing surface.

1 . A method of applying a liner to a container mouth in a hot-fill operation, said method comprising the steps of:
 a) placing the liner over a mouth sealing surface of the container;   b) heating the liner by induction or conduction; and   c) cooling the liner immediately thereafter while biasing the liner against the mouth sealing surface for a sufficient length of time to permit curing and sealing of the liner to the mouth sealing surface.   
     
     
         2 . The method of  claim 1  wherein the cooling of the liner is accomplished by directing a refrigerated media against the liner. 
     
     
         3 . The method of  claim 1  wherein the cooling of the liner is accomplished by the application of a refrigerated surface to the liner. 
     
     
         4 . The method of  claim 1  wherein the step of biasing the liner against the mouth sealing surface is accomplished by biasing a first conveyor belt against the liner while supporting the container with a second conveyor belt. 
     
     
         5 . The method of  claim 1  wherein the refrigerated media is water. 
     
     
         6 . The method of  claim 2  wherein the refrigerated media is air. 
     
     
         7 . A method of applying a liner to a container mouth in a hot-fill operation, said method comprising the steps of:
 a) placing the liner over a mouth sealing surface of the hot-filled container;   b) heating the liner by induction or conduction; and   cooling the liner immediately thereafter while biasing the liner against the mouth sealing surface for a sufficient length of time to permit curing and sealing of the liner to the mouth sealing surface.   c) cooling the liner and the container immediately by applying a refrigerated surface against the liner and directing a refrigerated media against the container thereafter while biasing the liner against the mouth sealing surface for a sufficient length of time to permit curing and sealing of the liner to the mouth sealing surface.   
     
     
         8 . The method of  claim 1  wherein the step of biasing the liner against the mouth sealing surface is accomplished by biasing a first conveyor belt against the liner on the mouth sealing surface while supporting the container with a second conveyor belt.